<?php

declare(strict_types=1);

namespace App\Application\Article;

use App\Application\Storage\StorageManagerInterface;
use App\Domain\Article\ArticlePhoto;
use App\Domain\Article\Repository\ArticlePhotoRepositoryInterface;
use App\Domain\Article\Repository\ArticleRepositoryInterface;
use Symfony\Component\Uid\Uuid;

final class PhotoService
{
    public function __construct(
        private readonly ArticleRepositoryInterface $articleRepository,
        private readonly ArticlePhotoRepositoryInterface $photoRepository,
        private readonly StorageManagerInterface $storageManager,
    ) {
    }

    public function upload(Uuid $articleId, string $tempPath, string $originalFilename): ArticlePhoto
    {
        $article = $this->articleRepository->findById($articleId)
            ?? throw new \DomainException("Article {$articleId->toRfc4122()} not found");

        $stored = $this->storageManager->store($tempPath, $originalFilename);

        $existingPhotos = $this->photoRepository->findByArticle($articleId);
        $isMain = 0 === \count($existingPhotos);
        $sortOrder = \count($existingPhotos);

        $photo = new ArticlePhoto($article, $stored->storagePath, $stored->filename, $isMain, $sortOrder);

        $this->photoRepository->save($photo);

        return $photo;
    }

    public function setMain(Uuid $photoId): void
    {
        $photo = $this->photoRepository->findById($photoId)
            ?? throw new \DomainException("Photo {$photoId->toRfc4122()} not found");

        $allPhotos = $this->photoRepository->findByArticle($photo->getArticle()->getId());
        foreach ($allPhotos as $p) {
            $p->setIsMain($p->getId()->equals($photoId));
            $this->photoRepository->save($p);
        }
    }

    public function delete(Uuid $photoId): void
    {
        $photo = $this->photoRepository->findById($photoId)
            ?? throw new \DomainException("Photo {$photoId->toRfc4122()} not found");

        $fullPath = $this->storageManager->getFullPath($photo->getStoragePath(), $photo->getFilename());
        if (file_exists($fullPath)) {
            unlink($fullPath);
        }

        if ($photo->isMain()) {
            $articleId = $photo->getArticle()->getId();
            $this->photoRepository->remove($photo);
            $remaining = $this->photoRepository->findByArticle($articleId);
            if ([] !== $remaining) {
                $remaining[0]->setIsMain(true);
                $this->photoRepository->save($remaining[0]);
            }
        } else {
            $this->photoRepository->remove($photo);
        }
    }
}